No problem, we've got 6542 and 9830 to multiply
6542 × 9830 = 9830 × (6542)
+ 9830 × 2 that equals 19660
+ 9830 × 40 what gives us 393200
+ 9830 × 500 yielding 4915000
+ 9830 × 6000 which equals 58980000

= 64307860
